#include <stdio.h>
#include "ex1/src/ex1.h"
#include "ex2/src/ex2.h"
#include "ex3/src/ex3.h"
#include "ex4/src/ex4.h"

int runWhileDemo();
int runForDemo();
int main(){
//    runWhileDemo();
//    runForDemo();
/* ex2 */
//    copyLetter();
// 替换输出，将输入的 制表符，退格，斜线转义输出
//    copyLetter2();
//    countChar();
//    countLine();
//    readChar();
    wordLength();
    return 0;
}

int runWhileDemo(){
    printf("run while-demo.\n");
    whileDemo();
    return  0;
}

int runForDemo(){
    printf("run for-demo.\n");
    forDemo();
    return  0;
}
